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Sonnax billet accumulator pistons feature a stronger piston made from anodized billet aluminum with a dual-seal design. OEM plastic accumulators are prone to breaking and have poor sealing qualities and the metal rings currently offered with aftermarket accumulators also have issues with sealing. Sonnax piston's seals prevent piston-to-bore contact and the D-rings vastly improve sealing compared to aftermarket steel rings.
( 8 )
$45.90
These TransGo automatic transmission accumulator pistons are designed to replace the original plastic accumulators that break or crack after prolonged use. They are manufactured from aluminum and machined to precise specifications for a simple bolt-in installation.
( 22 )
$21.86
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$32.14
FTI Performance powerglide reverse pistons will help you strengthen the durability in your transmission. These high-quality billet pistons are designed to hold up to the high-horsepower your street/strip engine puts out.
( 2 )
$49.99
Maintaining your transmission can save you from costly replacement bills. Sonnax automatic transmission replacement servo pistons feature a dual-seal design and can be used with one or two PTFE or OEM-style cast seals. Accompanying replacement components are also available from Sonnax.
Not Yet Reviewed
$26.90
Sonnax accumulator piston covers are designed for use in any GM TH350 application. They are machined from billet aluminum to provide a strong, yet lightweight alternative to OEM covers. Their dual O-ring design eliminates leaks and ensures the cover stays in position when used without an accumulator spring.
( 14 )
$36.72
Sonnax enhanced performance accumulator springs provide firmer 1-2 shifts for enthusiasts who appreciate quick, positive shift feel in their GM units. The design of these springs provides a performance shift feel, without reducing accumulator piston travel. This allows for a firmer—but still cushioned—shift that minimizes shock to the band and shafts. These springs also may be used as a replacement for THM 350 direct accumulator piston springs. Hit the road enjoying the perfect shift feel with Sonnax enhanced performance accumulator springs.
( 2 )
$25.91
Sonnax accumulator valve train kits have been designed to address specific transmission problems related to accumulator pressure loss or malfunctioning, such as delayed shifts or hard engagement. By ensuring proper accumulator pressure with the precisely designed valve and spring combinations within the kit can improve shift quality and smoothness, help maintain consistent accumulator pressure, and reduce the occurrence of harsh or abrupt shifts, and mitigating the effects of wear on the accumulator components, which can help extend the transmission's lifespan. Order the accumulator valve train kit designed for your specific transmission model.
Not Yet Reviewed
$47.67
Worn or weakened OE accumulator springs may cause delayed or sluggish shifts between 1st and 2nd gears. Installing Sonnax heavy-duty 1-2 accumulator spring kits restore shift feel, even in demanding towing applications. These stronger-than-OE springs improve overall performance, reliability, and longevity of your automatic transmission. Each kit includes an inboard (green) and outboard (yellow) spring.
Not Yet Reviewed
$21.81
TransGo valve body repair kits give you the components needed to restore proper shifts and correct other problems with your automatic transmission. They will help correct cold rough shifts, downshift problems, long shifts, hard or soft shifts and lockup problems. Repair your automatic transmission with TransGo valve body repair kits.
( 8 )
$37.29
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$47.31
TransGo automatic transmission shift kits include the needed items to restore proper function to your valve body with much improved drivability and durability. A wonderful addition to your OEM classic vehicle. Features and benefits: * Raises overall line pressure * Calibration for a higher speed manual low * Crisp shift performance and more durability
( 5 )
$32.91
A pump that's been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch, bearing, and thrust washer life. Having the ability to shim both the lower unit sun gear addresses these problems. Sonnax offers forward clutch hub washers for a variety of transmission applications. Product benefits: * Washers take up the play between the forward clutch hub and the direct clutch housing, allowing front unit endplay to be reduced * Washers also stabilize the direct drum, reducing delayed reverse and improving 2-3 clutch circuit * Allows salvage of valuable hard parts
Not Yet Reviewed
$23.69
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$45.18
American Powertrain offers replacement neutral safety switches to allow your car to be started only in park, increasing safety. Neutral safety switches can fail because of old age, accumulated dirt, corrosion, or damage to the wiring. So long as you don't have to trace a wire to locate the damaged spot, these switches themselves are easy enough to identify and change. For the quality replacement parts you need, you can count on American Powertrain.
Not Yet Reviewed
$28.35
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